cas_call({"EN_LWTM": "Long-term effects of gravel―sand mulch on soil organic carbon and nitrogen in the Loess Plateau of northwestern China", "EN_DYZZ": "","YM":"","Q":"","FBND":"2014","LWBH":"","EN_LXZZ":"","EN_WDWZZDW":"","EN_KWMC":"Journal of Arid Land","J":"","EN_ZY":"","EN_LWQW":"","QWLJ": "","EN_QTBZ": "","XSSX": "","EN_XK":"","YXYZ":"0.793","EN_DYZZSZBM":"","EN_LWCC":"","EN_LWCC":"","EN_LWLB":"","EN_CYZZ":"", "ADDR": ""});